RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4446 locations in the last 30 days (4603 reports) · Last sighting 22 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/24/20251513 S HARDING AVENorth Lawndale24Completed5 daysPhone CallCity 311
9/24/20254213 S ELLIS AVEOakland4Completed6 daysPhone CallCity 311
9/24/20253010 N NARRAGANSETT AVEBelmont Cragin36Completed7 daysPhone CallCity 311
9/24/20255222 W MELROSE STPortage Park31Completed8 daysPhone CallCity 311
9/24/20252137 W ARMITAGE AVELogan Square32Completed1 dayPhone CallCity 311
9/24/20258361 W SUMMERDALE AVENorwood Park41Completed1 dayPhone CallCity 311
9/24/20259352 S PHILLIPS AVECalumet Heights7Completed5 daysPhone CallCity 311
9/24/20256800 W FOSTER AVENorwood Park41Completed1 dayPhone CallCity 311
9/24/202510845 S HAMLIN AVEMount Greenwood19Completed8 daysInternetCity 311
9/24/20254211 S ELLIS AVEOakland4Completed6 daysMobile DeviceCity 311
9/24/2025978 W 18TH PLLower West Side25Completed6 daysMobile DeviceCity 311
9/24/20254705 W BYRON STPortage Park45Completed9 daysAlderman's OfficeCity 311
9/24/20251213 W 110TH STMorgan Park21Completed6 daysPhone CallCity 311
9/24/20255719 N OKETO AVENorwood Park41Completed6 daysAlderman's OfficeCity 311
9/24/20252925 N WISNER AVEAvondale35Completed9 daysPhone CallCity 311
9/24/20253736 N PITTSBURGH AVEDunning38Completed9 daysAlderman's OfficeCity 311
9/24/20252920 N SEELEY AVENorth Center32Completed8 daysAlderman's OfficeCity 311
9/24/20254318 N RICHMOND STIrving Park33Completed8 daysAlderman's OfficeCity 311
9/24/20255429 N LINDER AVEJefferson Park45Completed9 daysInternetCity 311
9/24/20251657 W PRATT AVERogers Park49Completed9 daysPhone CallCity 311
9/24/20255101 W WARWICK AVEPortage Park30Completed5 daysAlderman's OfficeCity 311
9/24/20251219 W GEORGE STLake View32Completed8 daysAlderman's OfficeCity 311
9/24/20251223 W GEORGE STLake View32Completed8 daysAlderman's OfficeCity 311
9/24/20257201 S CALIFORNIA AVEChicago Lawn18Completed7 daysPhone CallCity 311
9/24/20253810 N FRANCISCO AVEIrving Park33Completed8 daysMobile DeviceCity 311
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